5" Woodworker Aluminum with Cam-lever & Swivel Blade Clamps. The Woodworker saw has the Cam-Lever tensioning system, as well as Swivel Blade clamps. The Swivels enable the blade to be rotated 45 degrees R or L, plus having a detent at the straight ahead position. By placing the blade at 45 degrees, it moves the back of the frame out of the way, so that you can saw the base-line of dovetails without any frame interference. The Woodworker's Saw is functionally identical to a standard 5" sawframe with Cam-Lever tensioning and swiveling blade clamps. The difference is that it comes preloaded with a heavier wood cutting blade, and has a plain wooden handle.